I really am not that aware of a lot of different toxins. You may have already thought of the following, but this seems like the most obvious ones. Each of these is a part of a group (except DDT) and there would be many different chemicals within each group, but all would have more or less the same effect as others from within the group, with the exception of heavy metals.
I would say:
DDT (which is different from DEET)
CFCs
PCBs
Heavy metals (arsenic, lead, mercury, cadmium, iron, aluminum)
PCP's

And of course the deadliest of all: water. (Millions die from it every year.)

Dioxin's probably a great one to know too. Formed by industrial processes and one of the most toxic substances on the planet, if Im not mistaken.

I really am not that aware of a lot of different toxins. You may have already thought of the following, but this seems like the most obvious ones. Each of these is a part of a group (except DDT) and there would be many different chemicals within each group, but all would have more or less the same effect as others from within the group, with the exception of heavy metals.
I would say:
DDT (which is different from DEET)
CFCs
PCBs
Heavy metals (arsenic, lead, mercury, cadmium, iron, aluminum)
PCP's

And of course the deadliest of all: water. (Millions die from it every year.)

Who dies from Water poisoning? Unless the toxins were IN the water.....

Brown University 2017
2009 B Division National Ecology Champion
4 time National Medalist
Farewell Science Olympiad. We will meet again.

I really am not that aware of a lot of different toxins. You may have already thought of the following, but this seems like the most obvious ones. Each of these is a part of a group (except DDT) and there would be many different chemicals within each group, but all would have more or less the same effect as others from within the group, with the exception of heavy metals.
I would say:
DDT (which is different from DEET)
CFCs
PCBs
Heavy metals (arsenic, lead, mercury, cadmium, iron, aluminum)
PCP's

And of course the deadliest of all: water. (Millions die from it every year.)

Who dies from Water poisoning? Unless the toxins were IN the water.....

I really am not that aware of a lot of different toxins. You may have already thought of the following, but this seems like the most obvious ones. Each of these is a part of a group (except DDT) and there would be many different chemicals within each group, but all would have more or less the same effect as others from within the group, with the exception of heavy metals.
I would say:
DDT (which is different from DEET)
CFCs
PCBs
Heavy metals (arsenic, lead, mercury, cadmium, iron, aluminum)
PCP's

And of course the deadliest of all: water. (Millions die from it every year.)

Who dies from Water poisoning? Unless the toxins were IN the water.....

Actually, you can get water poisoning if you drink too much. Dont you remember that woman who died doing that contest "Hold your wee for a wii", where you had to drink a lot of water and not go to the bathroom to win a wii? She drank so much water that the tissues in her brain swelled up and she died.